Welllllll I am asked to do this!

I have been asked to take two classes ,with 80 students.
One of Electrodynamics,and one of Integral Calculus.The school is one in which i studied,and i just went there to met my teachers and they offered me to tak two lectures.

I think,i can feel nervous during the class,I wanna hear you so that i can come up with my best shot.

One more thing i am back home.And for the past two days i haven't even talked to GND.I don't know how(!) eventually i lost interest in her,i don't find her attractive by a trace any more.I believe what happened to me was just infatuation.